And opposite number Edwards is convinced the outcome will hinge on how effectively his men deal with the Visser threat.

The Newport-Gwent chief is so concerned about the talents of the newly qualified Scotland winger that he has shifted his toughest tackler, Adam Hughes, from centre to the wide berth in a bid to snuff out the danger.

Edwards said: “Visser is a game breaker who is going to be a contender for a place on the Lions tour of Australia next year.

“Adam will have his hands full but he’s a good competitor and we will need him to show that.”

Visser is back in the Gunners line-up after being rested for the narrow defeat to European champions Leinster in Dublin.

Bradley will give other front-liners a breather this weekend as they bid to earn their first away win against the Dragons for six years. They include skipper Greig Laidlaw and Scotland captain Ross Ford.

Bradley said: “This is a critical match.

“I have been satisfied with our performances so far this season.

“But we must continue to improve if we are to fulfil our ambitions of making the play-offs.

“There are no easy contests in this league, especially when you’re on the road, and Dragons are notoriously difficult to break down.

“Their defensive approach is quick and aggressive and puts a lot of pressure on the opposition.

“We will have to be sharp and clinical to make the most of any manufactured or opportunistic chances. It will be very tough game.”

Hooker Andy Titterrell makes his first competitive start in place of Ford, while All Black centre Ben Atiga returns.